/*
 *  Copyright 2021-2023 Weibo, Inc.
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

package com.weibo.rill.flow.service.trace;

import com.weibo.rill.flow.service.context.ContextInitializeHook;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.util.Map;
import java.util.Optional;

@Component
public class ContextTraceHook implements ContextInitializeHook<Map<String, Object>> {

    @Autowired
    private Tracer tracer;

    @Override
    public Map<String, Object> initialize(Map<String, Object> context) {
        if (tracer.isOpenTrace()) {
            Optional.ofNullable(tracer.traceId()).ifPresent((traceId) -> new TraceableContextWrapper(context).setTraceId(traceId));
        }
        return context;
    }

}
